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Geography Test- 03

 

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#1 Volcanism can be observed along 1. Convergent plate boundaries 2. Divergent plate boundaries 3. Transform plate boundaries. Select the correct answer using code below?Solution (a)

Along convergent plate boundaries, continental volcanoes or chains of volcanic islands are found.

Along divergent plate boundaries, small volcanoes are formed in the rift zone.
At transform boundaries, volcanism is absent and only earthquakes are observed.

Image result for 1. Convergent plate boundaries             2. Divergent plate boundaries             3. Transform plate boundaries.

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#2 Consider the following statements with reference to the Sargasso Sea 1. It is named after free-floating seaweed called Sargassum. 2. It is the only sea without a land boundary. 3. It is surrounded by four currents that form an ocean gyre. Which of the statements given above are correct??Solution (d)

  • The Sargasso Sea lies within the North Atlantic ocean, surrounded by four currents that form an ocean gyre.
  • The Sargasso Sea is bounded by the Gulf Stream on the west, the North Atlantic Current on the north, the Canary Current on the east, and the North Equatorial Current on the south.
  • It has been named for a genus of free-floating seaweed called Sargassum.
  • It has no land boundaries and is defined by ocean currents, western boundary by Gulf Stream, the north by the North Atlantic Current, the east by the Canary Current, and the south by the North Atlantic Equatorial Current.
  • Owing to surface currents, the Sargasso accumulates a high concentration of non- biodegradable plastic waste and forms the huge North Atlantic Garbage Patch.

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Image result for Sargasso Sea

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#3 Which of the following is/are influenced by the seasonal shifting of pressure belts? 1. Mediterranean Climate 2. Monsoonal Climate 3. Polar Climate. Select the correct answer using code below?Solution (b)

There is shift in position of pressure and wind belts due to seasonal changes of position of Earth in relation to sun.

This apparent shift influences the Mediterranean region resulting in its peculiar Mediterranean Climate.

The shift along with other factors is also responsible for Monsoonal Climate.

PRESSURE BELT-

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#4 Consider the following statements with reference to Liquefied Natural Gas (LNG) in India 1. It mainly comprises of Methane. 2. Most of the LNG demand in India is met through domestic production. Which of the statements given above is/are correct??Solution (a)

LNG is natural gas (predominantly methane) that has been cooled to –260° F (–162° C), changing it from a gas into a liquid that is 1/600th of its original volume. This dramatic reduction allows it to be shipped safely and efficiently aboard specially designed LNG vessels.

India is the 4th biggest liquefied natural gas (LNG) importer in the world, sourcing nearly half of its gas requirements from overseas.

 LNG Features-

  • Natural gas is the same gas used in homes for cooking and heating.
  • It is composed principally by methane, together with ethane, propane and other heavier hydrocarbons.
  • Comprises mainly methane, colourless, cryogenic liquid.
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#5 Consider the following statements with reference to the frontal systems. 1. A cold front forms when stable cold air meets advancing warm air. 2. A cold front is generally slower than warm front, as cold air mass is more dense and stable compared to warm air mass. 3. A cold front has a steeper slope compared to warm front. Which of the statements given above is/are correct??Solution (c)

A cold front forms when an advancing cold air mass meets warmer air, while a warm front forms where an advancing warm air mass meets colder air.

Cold fronts normally move faster than warm fronts because the dense, cold air mass easily displaces the lighter warm air.

Because of friction with ground, the advance of lower portion of a cold air mass is slowed relative to upper portion, resulting in steepness of slope and a protruding “nose” as it moves forward.

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